There are some very easy ways to make your voice heard online. Rather than sign circulating petitions that don’t work because signatures cannot be verified, use online action emailers and online sign-on petitions. Here are some of the action pages on which I regularly participate:

Union of Concerned Scientists – Citizens and Scientists for Environmental Solutions

Act For Change – Working Assets

Naral Pro-Choice America

Electronic Frontier Foundation – Defending Freedom in the Digital World

The Petition Site

Amnesty International

There are many many more. You can always do a search for “take action” and then your issue.